﻿442 
  Mr. 
  Charles 
  J. 
  Gahan 
  on 
  the 
  

  

  late 
  ; 
  sides 
  nearly 
  parallel, 
  feebly 
  sinuate 
  in 
  the 
  middle, 
  slightly 
  

   converging 
  at 
  the 
  apex. 
  Elytra 
  black, 
  thickly 
  and 
  finely 
  punc- 
  

   tured 
  ; 
  each 
  with 
  a 
  shoi't 
  longif-udinal 
  groove 
  behind 
  the 
  shoulder, 
  

   with 
  the 
  outer 
  margin 
  and 
  three 
  large 
  spots 
  pale 
  olivaceous 
  yellow. 
  

   The 
  first 
  spot 
  is 
  near 
  the 
  base, 
  the 
  second 
  transverse 
  and 
  touching 
  

   on 
  the 
  outside 
  the 
  marginal 
  band, 
  is 
  placed 
  at 
  the 
  middle, 
  the 
  third 
  

   is 
  quite 
  at 
  the 
  apex, 
  where 
  it 
  joins 
  the 
  marginal 
  band; 
  the 
  latter 
  

   is 
  slightly 
  expanded 
  opposite 
  the 
  interval 
  between 
  the 
  two 
  anterior 
  

   spots. 
  The 
  femora 
  and 
  the 
  under 
  side 
  of 
  the 
  body, 
  the 
  metathorax 
  

   excepted, 
  are 
  greenish 
  testaceoiis. 
  

  

  This 
  species 
  resembles 
  in 
  coloration 
  D. 
  viridimaculata, 
  

   Jac, 
  but 
  may 
  be 
  distinguished 
  by 
  its 
  larger 
  size, 
  and 
  the 
  

   relative 
  length 
  of 
  the 
  third 
  joint 
  of 
  its 
  antennae. 
  

  

  75. 
  Diabrotica 
  Steinheili, 
  Baly. 
  

   Journ. 
  Linn. 
  Soc, 
  xix., 
  p. 
  240. 
  

  

  Hab. 
  Colombia. 
  

  

  76. 
  Diabrotica 
  10-guttata, 
  Oliv. 
  

   Entom., 
  vi., 
  p. 
  651, 
  tab. 
  iv., 
  fig. 
  63. 
  

  

  Anguste 
  oblonga, 
  postice 
  pauUo 
  ampliata, 
  convexa, 
  subtus 
  flava, 
  

   pectore 
  tibiis 
  tarsisque 
  piceis 
  ; 
  supra 
  picea 
  aut 
  nigro-picea, 
  thorace, 
  

   scutello 
  antennarumque 
  articulis 
  subapicalibus 
  flavis 
  ; 
  elytris 
  ob- 
  

   longis, 
  postice 
  paullo 
  ampliatis 
  tenuiter, 
  crebre 
  punctatis, 
  utrisque 
  

   limbo 
  exterior! 
  maculisque 
  quinqiie, 
  2, 
  2, 
  1 
  dispositis, 
  flavis. 
  

  

  Var. 
  A. 
  Capita 
  cum 
  antennis 
  flavis. 
  

  

  Var. 
  B. 
  Elytroruna 
  limbo 
  disco 
  concolori. 
  

  

  Var. 
  0. 
  Elytrorum 
  maculis 
  inter 
  se 
  confluentibus. 
  

  

  Var. 
  D. 
  Elytris 
  totis 
  flavis. 
  

  

  Mas. 
  Antennis 
  articulis 
  tertio 
  ad 
  quintum 
  elongatis, 
  paullo 
  

   incrassatis 
  ; 
  tibiis 
  intermediis 
  ciu'Vatis, 
  apice 
  acutis. 
  

  

  FcEM. 
  Antennis 
  filiformibus 
  articulis 
  intermediis 
  nou 
  incras- 
  

   satis 
  ; 
  tibiis 
  intermediis 
  simplicibus. 
  

  

  Long. 
  8 
  — 
  9 
  mm. 
  

  

  Hab. 
  Cayenne, 
  Amazons, 
  Peru 
  ; 
  Bahia. 
  {Olivier). 
  

  

  Antennae 
  nearly 
  equal 
  to 
  the 
  body 
  in 
  length, 
  the 
  third 
  joint 
  

   nearly 
  three 
  times 
  the 
  length 
  of 
  the 
  second, 
  only 
  very 
  slightly 
  

   shorter 
  than 
  the 
  fourth, 
  the 
  latter 
  equal 
  to 
  or 
  slightly 
  longer 
  than 
  

   the 
  fifth, 
  the 
  third, 
  fourth, 
  and 
  fifth 
  in 
  the 
  ^ 
  longer 
  than 
  the 
  

   following 
  ones, 
  and 
  slightly 
  thickened. 
  Thorax 
  twice 
  as 
  broad 
  as 
  

  

  